ASTROSAT CZTI

Data Quality Report

Orbit 21003

Creation date: 2024-06-27T18:22:14.937368
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_072T04_9000003094_21003cztM0_level2.evt modeM0/AS1A05_072T04_9000003094_21003cztM0_level2_quad_clean.evt
Size (bytes)462,032,64072,109,440
Size440.6 MB 68.8 MB
Events in quadrant A3,251,092446,117
Events in quadrant B3,735,790450,557
Events in quadrant C3,351,389422,281
Events in quadrant D3,217,138415,409

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133822
B0150182
C0137002
D0137292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6439200.310607%
B6440951.475155%
C6440550.854037%
D6440200.310559%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7819 6440 0 0 0.00% 0.00%
B 7820 6441 33 33 0.42% 0.51%
C 7820 6441 0 0 0.00% 0.00%
D 7820 6441 11 11 0.14% 0.17%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 226 7265 38.36 846 832 167.7
A 3 137 6324 32.75 846 832 167.7
A 12 194 5820 29.74 846 832 167.7
B 7 220 173612 1105.06 849 831 156.4
B 0 189 152910 972.65 849 831 156.4
B 3 64 36107 225.62 849 831 156.4
C 14 238 130604 697.69 806 813 186.0
C 9 54 56346 298.52 806 813 186.0
C 10 91 21253 109.87 806 813 186.0
D 13 104 88875 454.68 809 787 193.7
D 2 234 30198 151.81 809 787 193.7
D 7 238 16565 81.44 809 787 193.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter